Insecticidal and mosquito repellent efficacy of the essential oils from stem bark and wood of Hazomalania voyronii

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F20%3A10143950" target="_blank" >RIV/00027006:_____/20:10143950 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41210/20:82395

Výsledek na webu

<a href="https://www.sciencedirect.com/journal/journal-of-ethnopharmacology/vol/248/suppl/C" target="_blank" >https://www.sciencedirect.com/journal/journal-of-ethnopharmacology/vol/248/suppl/C</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jep.2019.112333" target="_blank" >10.1016/j.jep.2019.112333</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Insecticidal and mosquito repellent efficacy of the essential oils from stem bark and wood of Hazomalania voyronii

Popis výsledku v původním jazyce

Ethnopharmacological relevance: The use of Hazomalania voyronii, popularly known as hazomalana, to repel mosquitoes and resist against insect attacks is handed down from generation to generation in Madagascar. In the present study, we investigated the ability of the essential oils (EOs) obtained from the stem wood, fresh and dry bark of H. voyronii to keep important mosquito vectors (Aedes aegypti and Culex quinquefasciatus) away, as well as their toxicity on three insect species of agricultural and public health importance (Cx. quinquefasciatus, Musca domestica and Spodoptera littoralis). Materials and methods: Hydrodistillation was used to obtain EOs from stem wood, fresh and dry bark. The chemical compositions were achieved by gas chromatography-mass spectrometry (GC-MS). Toxicity assays using stem wood and bark EOs were performed on larvae of Cx. quinquefasciatus and S. littoralis, and adults of M. domestica by WHO and topical application methods, respectively. Mosquito repellent activity of the most effective EO, i.e. the bark one, was determined on human volunteers by arm-in-cage tests, and results were compared with that of the commercial repellent N,N-ddiethyl-m-toluamide (DEET). Results: The H. voyronii EOs were characterized by oxygenated monoterpenes with perilla aldehyde (30.9-47.9%) and 1,8-cineole (19.7-33.2%) as the main constituents. The fresh and dry bark EOs were the most active on Cx. quinquefasciatus and S. littoralis larvae, respectively, with LC50/LD50 of 65.5 mg L-1, and 50.5 mu g larva(-1); the EOs from wood and fresh bark displayed the highest toxicity on M. domestica (LD50 values 60.8 and 65.8 mu g adult(-1), respectively). Repellence assay revealed an almost complete protection (&gt; 80%) from both mosquito species for 30 min when pure fresh bark EO was applied on the volunteers&apos; arm, while DEET 10% repelled &gt; 80% of the mosquitoes up to 120 min from application.

Název v anglickém jazyce

Insecticidal and mosquito repellent efficacy of the essential oils from stem bark and wood of Hazomalania voyronii

Popis výsledku anglicky

Ethnopharmacological relevance: The use of Hazomalania voyronii, popularly known as hazomalana, to repel mosquitoes and resist against insect attacks is handed down from generation to generation in Madagascar. In the present study, we investigated the ability of the essential oils (EOs) obtained from the stem wood, fresh and dry bark of H. voyronii to keep important mosquito vectors (Aedes aegypti and Culex quinquefasciatus) away, as well as their toxicity on three insect species of agricultural and public health importance (Cx. quinquefasciatus, Musca domestica and Spodoptera littoralis). Materials and methods: Hydrodistillation was used to obtain EOs from stem wood, fresh and dry bark. The chemical compositions were achieved by gas chromatography-mass spectrometry (GC-MS). Toxicity assays using stem wood and bark EOs were performed on larvae of Cx. quinquefasciatus and S. littoralis, and adults of M. domestica by WHO and topical application methods, respectively. Mosquito repellent activity of the most effective EO, i.e. the bark one, was determined on human volunteers by arm-in-cage tests, and results were compared with that of the commercial repellent N,N-ddiethyl-m-toluamide (DEET). Results: The H. voyronii EOs were characterized by oxygenated monoterpenes with perilla aldehyde (30.9-47.9%) and 1,8-cineole (19.7-33.2%) as the main constituents. The fresh and dry bark EOs were the most active on Cx. quinquefasciatus and S. littoralis larvae, respectively, with LC50/LD50 of 65.5 mg L-1, and 50.5 mu g larva(-1); the EOs from wood and fresh bark displayed the highest toxicity on M. domestica (LD50 values 60.8 and 65.8 mu g adult(-1), respectively). Repellence assay revealed an almost complete protection (&gt; 80%) from both mosquito species for 30 min when pure fresh bark EO was applied on the volunteers&apos; arm, while DEET 10% repelled &gt; 80% of the mosquitoes up to 120 min from application.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF ETHNOPHARMACOLOGY

ISSN

0378-8741

e-ISSN

—

Svazek periodika

248

Číslo periodika v rámci svazku

únor

Stát vydavatele periodika

IE - Irsko

Počet stran výsledku

7

Strana od-do

112333

Kód UT WoS článku

000503312800046

EID výsledku v databázi Scopus

2-s2.0-85075337603